IN2014DN07088A - - Google Patents

Info

Publication number
IN2014DN07088A
IN2014DN07088A IN7088DEN2014A IN2014DN07088A IN 2014DN07088 A IN2014DN07088 A IN 2014DN07088A IN 7088DEN2014 A IN7088DEN2014 A IN 7088DEN2014A IN 2014DN07088 A IN2014DN07088 A IN 2014DN07088A
Authority
IN
India
Prior art keywords
flow path
refining
supply flow
oxidizing gas
hot metal
Prior art date
Application number
Other languages
English (en)
Inventor
Kenji Nakase
Yukio Takahashi
Naoki Kikuchi
Goro Okuyama
Shingo Sato
Yuichi Uchida
Yuji Miki
Original Assignee
Jfe Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of IN2014DN07088A publication Critical patent/IN2014DN07088A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/4613—Refractory coated lances; Immersion lances
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2250/00—Specific additives; Means for adding material different from burners or lances
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
IN7088DEN2014 2012-03-29 2013-03-25 IN2014DN07088A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012075928 2012-03-29
JP2012239975A JP6036172B2 (ja) 2012-03-29 2012-10-31 転炉における溶銑の精錬方法
PCT/JP2013/001997 WO2013145686A1 (ja) 2012-03-29 2013-03-25 転炉における溶銑の精錬方法

Publications (1)

Publication Number Publication Date
IN2014DN07088A true IN2014DN07088A (ja) 2015-04-10

Family

ID=49258990

Family Applications (1)

Application Number Title Priority Date Filing Date
IN7088DEN2014 IN2014DN07088A (ja) 2012-03-29 2013-03-25

Country Status (10)

Country Link
US (1) US9957581B2 (ja)
EP (1) EP2808407B1 (ja)
JP (1) JP6036172B2 (ja)
KR (1) KR101684378B1 (ja)
CN (1) CN104245965B (ja)
BR (1) BR112014023560B1 (ja)
IN (1) IN2014DN07088A (ja)
TR (1) TR201808805T4 (ja)
TW (1) TWI544082B (ja)
WO (1) WO2013145686A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6398306B2 (ja) * 2014-05-14 2018-10-03 新日鐵住金株式会社 含鉄原料の転炉溶解方法
JP6466733B2 (ja) * 2015-02-18 2019-02-06 株式会社神戸製鋼所 溶銑の脱りん処理における固体酸素源の供給方法
KR101651221B1 (ko) 2015-04-21 2016-08-25 충남대학교산학협력단 화염 쏠림 방지 렌스
JP6327298B2 (ja) * 2015-09-01 2018-05-23 Ｊｆｅスチール株式会社 溶銑の精錬方法
WO2019064433A1 (ja) * 2017-09-28 2019-04-04 大陽日酸株式会社 溶解・精錬炉の操業方法及び溶解・精錬炉
TWI735668B (zh) * 2017-09-29 2021-08-11 日商大陽日酸股份有限公司 熔解、精鍊爐的操作方法及熔解、精鍊爐
CN111826499B (zh) * 2020-06-30 2021-12-03 东北大学 一种基于转炉lt除尘灰的高炉铁水脱碳处理方法
CN111809019B (zh) * 2020-06-30 2021-12-03 东北大学 一种利用高炉灰的高炉铁水脱碳方法
JP7215638B2 (ja) * 2021-02-01 2023-01-31 Ｊｆｅスチール株式会社 転炉の上吹きランスの制御方法、副原料添加方法および溶鉄の精錬方法
CN115323101B (zh) * 2022-08-02 2023-12-15 鞍钢股份有限公司 一种转炉氧枪快速打火的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949794C2 (de) 1979-12-11 1984-01-19 Eisenwerk-Gesellschaft Maximilianshütte mbH, 8458 Sulzbach-Rosenberg Verfahren, einer Eisenschmelze im Konverter Kohlenstoff zuzuführen
US4642047A (en) * 1984-08-17 1987-02-10 American Combustion, Inc. Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining
JP3577365B2 (ja) 1995-06-30 2004-10-13 新日本製鐵株式会社 溶銑の予備処理方法
JPH1180825A (ja) 1997-09-09 1999-03-26 Nippon Steel Corp 転炉精錬用上吹きランスおよびそれによる転炉精錬方法
JP2001323312A (ja) 2000-05-12 2001-11-22 Nippon Steel Corp 二次燃焼による反応熱の利用方法
JP4735169B2 (ja) * 2005-09-30 2011-07-27 Ｊｆｅスチール株式会社 溶銑の脱燐処理方法
US8475561B2 (en) * 2008-03-25 2013-07-02 Kobe Steel, Ltd. Method for producing molten iron
AU2009293900B2 (en) * 2008-09-16 2014-01-23 Istc Co., Ltd. Process for producing molten iron
JP2010156025A (ja) * 2008-12-29 2010-07-15 Jfe Steel Corp 溶融還元炉の粉粒物装入用バーナーランスおよび溶融還元による金属溶湯の製造方法
JP2012031452A (ja) * 2010-07-29 2012-02-16 Jfe Steel Corp 溶銑の脱燐処理方法

Also Published As

Publication number Publication date
BR112014023560B1 (pt) 2020-02-18
JP6036172B2 (ja) 2016-11-30
US20150020648A1 (en) 2015-01-22
EP2808407B1 (en) 2018-05-23
TR201808805T4 (tr) 2018-07-23
KR101684378B1 (ko) 2016-12-08
EP2808407A4 (en) 2015-09-02
US9957581B2 (en) 2018-05-01
JP2013227650A (ja) 2013-11-07
TW201343922A (zh) 2013-11-01
WO2013145686A1 (ja) 2013-10-03
CN104245965A (zh) 2014-12-24
TWI544082B (zh) 2016-08-01
KR20140133602A (ko) 2014-11-19
EP2808407A1 (en) 2014-12-03
CN104245965B (zh) 2016-07-20

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